Global Machinery Company DEC003AC User Manual

1. Cord protector

2. Wire loop

3. On/off switch

4. Variable speed dial

5. Spindle lock button

6. Collet nut

7. Collet

8. Brush caps

9. Collet cover

8

8

67

4 2

1

5

3

135W

AC ROTARY
TOOL

DEC003AC

9

Warranty Powertools

Whilst every effort is made to ensure your complete
satisfaction with this tool, occasionally, due to the mass
manufacturing techniques, a tool may not live up to our
required level of performance and you may need the
assistance of our service department.

This product is warranted for a 2-year period for home
domestic use from the date of the original purchase. If found
to be defective in materials or workmanship, the tool or the
offending faulty component will be repaired or replaced free
of charge with another of the same item. A small freight
charge may apply. Proof of purchase is essential. We reserve
the right to reject any claim where the purchase cannot be
verified.

This warranty does not include damage or defects to the tool
caused by or resulting from abuse, accidents, alterations or
commercial or business use. It also does not cover any bonus
items or included accessories. Only the powertool is covered
under this warranty.

With continuing product development, changes may have
occurred which render the product received slightly different to
that shown in this instruction manual.

Please ensure that you store your receipt in a safe place.
Conditions apply to the above warranty. For full details of the

warranty terms and conditions please refer to our website
– www.gmcompany.com

For prompt service we suggest you log your service request
online - www.gmcservice.com.au, should you not have access
to the internet, please contact our service department on 1300

880 001 (Australia) or 0800 445 721 (New Zealand).

Introduction

Your new GMC power tool will more than satisfy your
expectations. It has been manufactured under
stringent GMC Quality Standards to meet superior
performance criteria.

You will find your new tool easy and safe to operate,
and, with proper care, it will give you many years of
dependable service.

Caution

Carefully read through this entire Instruction Manual before
using your new GMC Power Tool. Take special care to heed
the Cautions and Warnings.

Your GMC power tool has many features that will make your
job faster and easier. Safety, performance, and dependability
have been given top priority in the development of this tool,
making it easy to maintain and operate.

Environmental protection

Recycle unwanted materials instead of
disposing of them as waste. All tools, hoses
and packaging should be sorted, taken to the
local recycling centre and disposed of in an
environmentally safe way.

Description of symbols

The rating plate on your tool may show symbols. These
represent important information about the product or
instructions on its use.

M8 Spindle thread for Collet nut

Read instruction manual

Wear hearing protection.
Wear eye protection.
Wear breathing protection.

Double insulated for additional protection.

Conforms to relevant standards for
electromagnetic compatibility.

Specifications

Input power: 135W
Power supply: 230-240V ~ 50 Hz
No load speed: 15000-35000min

-1

Collet size: Ø1.5mm, Ø2.0mm, Ø2.4mm and Ø3.2mm
M8 spindle
Max. Drill Ø 3.2mm
Max. Grinding disc Ø 25 x Ø 2mm
Cord length: 1.8 metres
Tool weight: 0.7 kg
Flexible shaft length: 1.0 m
Sound pressure level: 83 dB(A)
Sound power level: 96 dB(A)
Vibration: 0.482 m/s

2

Safety instructions

WARNING. Read and understand all instructions.

Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury. The term “power
tool” in all of the warnings below refers to your mains­operated (corded) power tool or battery-operated (cordless)
power tool.

Save these instructions
Work area

• Keep work area clean and well lit. Cluttered and dark
areas invite accidents.

• Do not operate power tools in explosive

atmospheres, such as in the presence of flammable
liquids, gases, or dust. Power tools create sparks which

may ignite the dust or fumes.

• Keep children and bystanders away while operating a

power tool. Distractions can cause you to lose control.

Electrical safety

• If cordset is damaged have it replaced by an authorised
service centre.

• Power tool plugs must match the outlet.
Never modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce risk of
electric shock.

• Avoid body contact with earthed or grounded

surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock

if your body is earthed or grounded.

• Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electric shock.

• Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool. Keep
cord away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of
electric shock.

• When operating a power tool outdoors, use an
outdoor extension cord suitable for outdoor use.
Use of a cord suitable for outdoor use reduces the risk of
electric shock.

Personal safety

• Stay alert, watch what you are doing and use
common sense when operating a power tool. Do

not use a power tool while you are tired or under the
influence of drugs, alcohol, or medication. A moment
of inattention while operating power tools may result in
serious personal injury.

• Use safety equipment. Always wear eye protection.
Safety equipment such as a dust mask, non-skid safety
shoes, hard hat, or hearing protection use.

• Avoid accidental starting. Ensure the switch is in the
off-position before plugging in. Carrying power tools with
your finger on the switch or plugging in power tools that
have the switch on invites accidents.

• Remove any adjusting key or wrench before
turning the tool on. A wrench or a key that is left

attached to a rotating part of the power tool may result
in personal injury.

• Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.

• Dress properly. Do not wear loose clothing or jewellery.
Keep your hair, clothing and gloves away from moving
parts. Loose clothes, jewellery or long hair can be caught
in moving parts.

• If devices are provided for the connection of dust

extraction and collection facilities ensure that these
are connected and properly used. Use of these

devices can reduce dust-related hazards.

Power tool use and care

• Do not force the power tool. Use the correct power tool
for your application. The correct power tool will do the job
better and safer at the rate for which it was designed.

• Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.

• Disconnect the plug from the power source before

making any adjustments, changing accessories, or
storing power tools. Such preventive safety measures

reduce the risk of starting the power tool accidentally.

• Store idle power tools out of the reach of children

and do not allow persons unfamiliar with the
power tool or these instructions to operate the
power tool. Power tools are dangerous in the hands of

untrained users.

• Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and any other
condition that may affect the power tool’s operation. If
damaged, have the power tool repaired before use. Many
accidents are caused by poorly maintained power tools.

• Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.

• Use the power tool, accessories and tool bits etc.,

in accordance with these instructions and in the
manner intended for the particular type of power
tool, taking into account the working conditions
and the work to be performed. Use of the power tool

for operations different from intended could result in a
hazardous situation.

Service

• Have your power tool serviced by a qualified repair
personnel using only identical replacement parts.

This will ensure that the safety of the power tool is
maintained.

Additional safety instructions for
rotary tools

• Do not use a disc marked with a lower RPM than that of
the maximum no load speed shown on the rating label

• Always wear eye, ear and breathing protection

• Do not apply too much pressure when grinding, cutting, etc

• Keep your hands well clear of the cutting devices

WARNING. The use of an accessory or attachment, other

than those recommended in this Instruction Manual, may
present a risk of personal injury.

To use this tool properly, you must observe the safety
regulations, the assembly instructions and the operating
instructions to be found in this Manual. All persons who use
and service the machine have to be acquainted with this
Manual and must be informed about its potential hazards.
Children and infirmed people must not use this tool.

Black

Code: DEC003

Date: 061017 Edition: 14 Op: PW

Children should be supervised at all times if they are in the
area in which the tool is being used. It is also imperative
that you observe the accident prevention regulations in
force in your area. The same applies for general rules of
occupational health and safety.

The manufacturer shall not be liable for any changes made
to the tool nor for any damage resulting from such changes.

Even when the tool is used as prescribed it is not possible to
eliminate all residual risk factors. The following hazards may
arise in connection with the tool’s construction and design:

• Damage to the lungs if an effective dust mask is
not worn.

• Damage to hearing if effective earmuffs are not worn.

• Damage to eyes if effective goggles are not worn

• Risk of injury unless hands are kept well clear of
cutting devices

Unpacking

Due to modern mass production techniques, it is unlikely
that your GMC Power Tool is faulty or that a part is missing.
If you find anything wrong, do not operate the tool until the
parts have been replaced or the fault has been rectified.
Failure to do so could result in serious personal injury.

Operation

WARNING. Before connecting a tool to a power source

(power point receptacle, outlet, etc.) be sure that the voltage
supply is the same as that specified on the nameplate of
the tool. A power source with a voltage greater than that
specified for the tool can result in serious injury to the user,
as well as damage to the tool. If in doubt, do not plug in
the tool. Using a power source with a voltage less than the
nameplate rating is harmful to the motor.

Switch on

1. Set the variable speed dial (4) to 1 and push the on/off
switch (3) to “I”, the machine is in continuous operation,
and will start at minimum speed.

Switch off

1. Reset the variable speed dial (4) to 1 and push the on/off
switch (3) to position “0”.

Varying the speed

1. You can use the variable speed dial (4) to alter the speed
of the collet, as follows:

• Position 1 - Slow

• Position 3 - Medium

• Position 6 - Fast

2. Select the correct speed for the work and type of bit
you are using. In general, lower speeds are best suited
for large accessories and higher speed for smaller
accessories.

Quick reference guide

Operation Speed

• Cutting metal 5 - 6

• Sanding wood 5 - 6

• Cutting hard metal 5 - 6

• Engraving metal 4 - 5

• De-burring 4 - 5

• Drilling holes 4 - 5

• Removing rust 3 - 4

• Sharpening 3 - 4

• Polishing 1 - 2

Holding the tool

1. For jobs such as milling or engraving where precision is
required, hold the tool like a pen.

2. For heavier work like cutting or grinding hold the machine
in the palm of your hand.

Changing accessories

1. Make sure that the machine is switched off and the
plug removed from the power before you commence
changeover.

2. Loosen and tighten collet fully using the 2 in 1
wrench provided. (always ensure bits are tight before
commencing any work with your tool).

3. Press and hold down the spindle lock button (5) and
unscrew the Collet nut (6).

4. Select a suitable Collet for the accessory to be used and
insert it in the collet nut shaft.

5. Turn the Collet nut in an anti-clockwise direction to
loosen and, when the bit is in place, turn the Collet nut in
clockwise direction to lock it in place, whilst depressing
the spindle lock.

6. Make sure that the bit is inserted as far as possible.
Having too much shaft exposed could cause it to damage
or bend.

Locating a cutting/sanding disc

1. Insert the disc holder into the Collet (7) whilst the Collet
nut (6) is loosened.

2. Remove the screw from the end of the disk holder with
the 2 in 1 wrench provided, and insert the screw through
the cutting/sanding disc.

3. Replace the screw and tighten, attaching the cutting or
sanding disc onto the holder. (Do not over-tighten)

Locating a sanding drum

1. Loosen the small screw in the top of the holder
(This allows the rubber to slacken).

2. Slide the sanding drum onto the holder.

3. Secure the sanding drum in place by tightening the
screw causing the rubber drum to bulge and grip the
drum. (Do not over-tighten)

Attaching the flexible shaft

WARNING. Never bend the flexible shaft with a radius

of less than 150 mm (6”) when operating. Please store the
flexible shaft in the designated compartment of the carry
case when not in use.

1. Remove the collet cover (9), and loosen the collet nut (6)
by turning them anti-clockwise.

2. Insert the inner cable of the flexible shaft into the collet
(7) until the cable cannot go any further.

3. Tighten the collet nut (6) with the wrench by turning the
nut clockwise.

4. Thread the flexible shaft collet cover onto the tool housing
by turning it clockwise, and finger tighten only.

WARNING. Never tighten the collet nut with the use of

pliers or a wrench as the thread will strip.

Changing the collet and accessories

Note. To change the collet or install a cutter or accessory

into the flexible shaft, follow the same general procedure as
covered earlier under ‘Changing accessories’.

WARNING. Do not attempt to loosen the collet nut without

pulling the spindle lock back as far as possible. Damage to
the flexible shaft will result.

1. To lock the spindle lock, pull the lock back as far
as possible.

2. Use the wrench to loosen and tighten the collet nut.

Maintenance

1. Store the machine, instruction manual and, where
necessary, the accessories in the original packaging.
In this way you will always have all the information and
parts ready to hand.

Cleaning

1. Keep the tool’s air vents unclogged and clean at
all times.

2. Remove dust and dirt regularly. Cleaning is best
done with a rag.

3. Never use caustic agents to clean plastic parts.

CAUTION. Do not use cleaning agents to clean the

plastic parts of the tool. A mild detergent on a damp
cloth is recommended. Water must never come into
contact with the tool.

Repairs

1. Only an authorised service centre should replace the
cordset or effect other repairs. If the cordset is damaged
or worn, have it repaired or replaced by an authorised
service centre.

2. When the brushes are worn, the tool may not work.
Have new brushes fitted by an authorised service centre.

Please refer to your warranty card, which is separate
to these instructions

Accessories For DEC003AC Kit

Sanding

Sanding drums are perfect for detailed sanding jobs.
5 Coarse sanding sheets 20 mm diameter
5 Fine sanding sheets 20 mm diameter
5 Sanding bands 15 mm diameter

Mandrels

1 Mandrel for sanding band 3.2 mm Diameter shaft
1 Disc mandrel for cut-off wheel 3.2 mm Diameter shaft
1 Polishing pad mandrel 3.2 mm Diameter shaft

Grinding

The perfect way to remove burs and sharpen tools.
5 Grinding stones Various shapes & sizes

Cutting

Various cutting wheels let you cut, trim and shape metal,
glass and ceramics.

1 Ball-shaped high speed cutter 2.4 mm Diameter shaft
1 Corn-shaped cutter 2.4 mm Diameter shaft
8 Cut-off wheels 24 mm Diameter

Polishing & cleaning

Ideal for removing rust, smoothing out imperfections
or cleaning tools.

1 Polishing pads Felt 13 x 9 mm
1 Polishing pads Felt 25 x 5 mm
1 Bristle Brush Brass 3.2 mm Diameter shaft
1 Wire brush wheel 3.2 mm Diameter shaft

Drilling

An extremely convenient way to drill holes with more
detail and precision.

1 High speed drill bit 3.2 mm diameter
1 2 in 1 Wrench
4 Collets Ø1.5mm, Ø2.0mm, Ø2.4mm and Ø3.2mm
1 Stone for dressing grinding wheels 26 x 10 x 10 mm

45–55 South Centre Road Melbourne Airport

Victoria, Australia 3045

Tel: [phone] Fax: [phone]

customer assist

If your product needs repairing, replacing,
technical service or you simply need
help or advice, please contact us on our
Customer Assist Line
1300 880 001 (Australia) or
0800 445 721 (New Zealand).

For prompt service we suggest you log
your service request online at www.
gmcservice.com.au. Should you not have
access to the Internet, please contact
our service department on 1300 880 001
(Australia) or 0800 445 721 (New Zealand).
7am–7pm, 7days a week (AEST).

Please note that if repair or replacement
is required, you must provide a valid
original purchase receipt.

You will need the following details at
hand to log your service request;

Personal details:
First & Last name, address, pick up
address, contact phone numbers,
email address

Product details:
Product number, date of purchase, retailer
bought from, State & postcode, receipt
number, reason for the request, copy

of official purchase receipt

Attach your purchase receipt and save
with this Manual for future reference.

Please refer to our website
www.gmcompany.com for full GMC
warranty Terms and Conditions.